Flexible closure



Aug. 14, 1928.

1,680,362 R. H. BINNs FLEXIBLE GLOSURE Filed Feb. 18, 1925 Patented Aug.14, 1928.

UNITED STATES PATENT OFFICE.

RALPH H. BINNS,

'10 EDWARD 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR 0F TWO-SEVENTHS H.BINNS, 0F PITTSBURGH, PENNSYLVANIA.

` FLEXIBLE CLOSUBE.

Application Bled `February The present invention relates to an improvedform of pull member or operating device for the cam slider for flexibleclosures of the type in which flexible stringers carry spacedinterlocking devices controlled by the movement of the slider whichembraces said devices.

The main purpose of the present invention is to so improve the operatingpull member that it can effectively move the slider either upwardly ordownwardly from a single point of attachment. The ull member is made inthe form of a slotted ink which engages a pin carried by ears or lugsupon the slider body, so that the link can project from the pin ineither direction. The slotted pull member is formed with a heel orprojection that is adapted to engage the slider in one position to limitthe angular movement of the pull member and thereby afford a leveragecontrol of the position of the slider in its movement in one directionupon the fastening devices. The connecting pull pin may be attached t0the slider at either endor between the ends, but is preferably mountedadjacent to one end. The slottedpull member is preferably reversible, soas .'to afford a direct pull in moving the slider in one direction andan angularly controlled pull in the opposite direction. The reversiblepull member is preferably provided with a locking detent arranged toengage parts of the interlocking fastening devices in their interlockedposition.

In order that the invention may be fully understood itfwill first bedescribed with reference to thel accompanying drawings and afterwardsmore particularly pointed out in the annexed claimen In said drawings-Fig.` 1 is a front elevation of a portion of a flexible closureembodyingthe present invention;

Fig. 2 is a detail side same;

Fig. 3 is a similar view showing the pull member in reversed position;

Fig. 4 is a detail transverse sectional view taken on the line 4--4 ofFig. 1;

Fig. 5 is a detail perspective view of the improved reversible slottedlink pull mem ber detached from the slider;

Fig. 6 is a view similar to Fig. 1 showingfa slight modification;

elevation of the 1s, 1925. semi in. 10,07;

F igs. 7 and 8 areviews similar to Figs. 2 an 3 respectively, showingthe modified form of, pull member; and

Fig. 9 is a, view similar to Fig. 4 illustrating the modified forn ofpull member taken on line 9 9 of Fig. 6.

In the type of flexible closure to which the present invention relates,twodlexible strips or stringers 1, 2 are formed at their inner edgeswith beads or thickened portions 3 upon which are secured interlockingfastening devices.

Each interlocking fastening device is preferably formed`with a U-shapedyoke 10 embracing `and compressed upon the beaded or thickened edge 3 ofa iexible Stringer, a narrow neck 12, a forked hook 13, and the oppositeriding lugs or shoulders 15. The specific form and operation of thefastening devices of thepreferred construction will be more fullyunderstood by reference to the application of Binns, Binns and De Hart,filed July 5th, 1924, Serial No. 724,355.

The operating cam slider is preferably constructed as set forth in theabove named a plication of a back-plate 20 and a forep ate 21 mounted inspaced relation upon a binder post not shown. The inner faces of theback-plate and fore-plate are provided With controlling grooves 25separated by a central guide rib l26. The riding lugs 15 of thefastening devices operate in the controlling grooves 25.

The fore-plate 21 of the slider is formed adjacent to one end with theoutwardly presented ears or lugs 30 carrying the transverse pull pin 31,which passes through the slot 34 of the link form of pull member 35.This link pull member 35 is elongated and slotted from end to end, sothat it can be shifted to project upwardly or downwardly. from the pullpin 31 and can be reversed by turning it upon the pin in the mannerpresently to be explained.

In the normal locked position of the link ull member 35, as shown inFigs. 1 and 2 of the drawings, it will be observed that the lockingdetents 40 project inwardly across the lower edge of the sliderforesplate 21 and engage the staggered riding lugs 15 of adjacentfastening devices. It will be noted that these locking detents 40 arepresented in parallel transverse planes, that is. are staggered withrelation to each other so as to effectively engage the alternating orzigzag fastening devices as clearly shown in the drawings.

It will be noted that the pull member 35 is formed with a thickened wall36 at one end which in effect produces a heel or projection which actsas a thumb piece for moving the detents into and out of locked position(Figure 2), and as a fulcrum heel when the pull member is reversed intothe position shown in full lines in Figure 3. This combined thumb pieceand fulcrum or stop 36 extends slightly beyond the pull pin 31 when thepull member is reversed from theposition shown in full lines in Fig. 2to the position shown in full lines in Fig. 3. In reversing the pullmemberl in this way, it will be understood that the pull member is movedoutwardly on the pin 31 as a pivot by outward pressure on member 36passing through the dotted position shown in Fig. 2 to the dottedposition shown in Fig. 3 and then slid longitudinally upon pin 31 tobring it into the position shown in full lines in Fig. 3. In this latterposition of the pull member, it will be observed that the heel orenlargement 36 engages the face of forelate 21, or the raised surface 37upon the ihre-plate, so that the pressure outwardly in the directionindicated by arrow m in Fig. 3 affords a positive leverage hold upon theslider through the pull pin 31 and fulcrum heel 36, by which the angularposition of the slider upon the stringers of fastening devices can beaccurately controlled as the slider is moved downwardly in the directionof arrow y by the downward pressure, combined with the stated outwardpull. This action produces an easy unlocking movement of the slider,because it revents the objectionable digging in or slight inwardpro'ection of the lower end of the slider, whic would be induced bypulling the slider downwardly from the attachment at the upper end ofthe slider.

In moving the slider upwardly the pull member 35 is moved into theposition shown in dotted lines in Fig. 3 to Igive it a direct upwardpull upon the pin 31.

In Figs. 6 to 9, I have shown the slightly modified form of link pullmember for the operating slider. In this form of the device, the linkpull member is mounted upon a pull pin 31 in exactly the same way asabove described with reference to the preferred form. This modified linkpull member is a shorter link than the referred form and is formed atone end wit a central in- Wardly projecting prong or detent 51, whichisarranged to extend through an opening 21"L of the slider fore-plateand engage in a recess between adjacent interlocked fastening edvices asshown particular] in Fig. 9.

The pull link 50 is also provided with a projectlng lug or heel 53 atthe end of the link above the prong 51, which member 53 acts as a thumbpiece for moving the detent 5l into and out of locked position and as afulcrum heel or extension when the link is reversed from the positionshown in full lines in Fi 7 through the dotted positions shown inlIiigs. 7 and 8 into the position shown in full lines in Fig. 8. Theoperation of the device with the modified form of link pull member issubstantially the same as above described in connection with thepreferred form.

I claim:

1. In a fiexible closure or fastener, the combination of flexible stripsor stringere having spaced interlocking fastening devices, and a sliderembracing and sliding upon said fastening devices for interlocking andunlocking them, with a pull member mounted upon said slider and movablethereon upon an axis transverse to the movement of the slider, said pullmember having means limiting its angular movement upon said slider,whereby leverage control of the slider is provided.

2. In a iiexible` closure or fastener, the combination of fiexiblestrips or stringere having spaced interlocking fastening devices, and aslider embracing and sliding upon said fastening devices forinterlocking and unlocking them, with a pull member pivotally mountedupon said slider on an akis transverse to the slider movement, and afulcrum heel or projection on the pull member in position to engage theslider and limit the angular movement of the pull member to affordleverage control of the slider in its movement over the fasteningdevices.

3. In a Hexible closure or fastener, the combination of iiexible stripsor stringers having spaced interlocking fastening devices, and a sliderembracing and sliding upon said fastening devices for interlocking andunlocking them, with a pull member having pivotal connection with saidslider adjacent to one end of the slider and on an axis transverse tothe slider movement, said pull member being formed with a fulcrum heelor projection adjacent to its pivot end in position to engage the sliderand limit the angular movement of the pull member upon the slider, andafford levera e control of the slider as it is moved upon te fasteningdevices by the pull member.

4. In a flexible closure or fastener, the combination of flexible stripsor 'stringere having aced interlocki fastenin devices, an a sliderembracing and s lding upon said fastening devices for interlocking andunlocking them, with a pull member in the form of a link havin anelongated slot and a pin carried by the ider and extending through theslot of said link pull member and forming a slidable connectiontherefor.

5.,n a flexible closure or fastener, the combination of flexible stripsor stringers having spaced interlocking fastening devices, and a sliderembracing and s 1d upon said fastening devices for interlocking andunlocking them, with a pull member 1n the form of a link having anelongated slot and a fulcrum heel or enlargement at one end, and a pinmounted upon said slider and extending through and engaging said slottedlink pull member, the pull member being thereby slidably mounted uponthe slider and having its angular movement upon the slider pin limitedby the engagement of said fulcrum heel with the slider.

6. In a flexible closure or fastener, the combination of flexible stripsor stringers having spaced interlocking fastenin devices, and a sliderembracing and siding upon said fastening devices for interlocking andunlocking them, with a link pull member having pin and slot connectionwith said slider, and a locking detent upon said pull member in positionto engage interlocked fastening devices.

7. In a flexible closure or fastener, the combination of flexible stripsor stringers having spaced interlocking fastening devices, and a sliderembracing and sliding upon said fastening devices for interlocking andunlocking them, with a link pull member formed with an elongated slot,and a pin upon said slider adjacent to one end extending through theslot of said link pull member, and forming a slidable mounting therefor,said pull member being angularly and reversibly movable upon said pin.

8. In a flexible closure or fastener, the combination of flexible stripsor stringere having spaced interlockin fastening devices, and a sliderembracing an sliding upon said astenin g devices for interlocking andunlocking them, with a slotted link pull member formed with a fulcrumheel or enlar ement at one end, and a pull pin mounte upon said sliderand extending through the slot of said link pull member, said pullmember having slidable connection with said in and being therebyreversibly mounted an angularly movable u on said slider.

9. In a flexi le closure or fastener, the combination of flexible stripsor stringere having spaced interlocking fastenin devices, and a sliderembracing and siding upon said fastening devices for interlocking andunlocking them, with a pull member reversibly connected with said sliderand having a projecting heel or lug acting as a. stop in one positionand a thumb piece 1n another position.

10. In a flexible closure or fastener, the combination with flexiblestringers carryin spaced interlocking fastening devices forme withriding lugs or shoulders, said fastening devices alternating orzigzagging in their interlocked position, and an operating slider formedwith internal controllin grooves engaging said riding lugs or shou ders,with a l nk pull member movably mounted upon said slider and formed withstaggered inwardly projecting locking detente adapted to engage ridinglugs of adjacent interlocked fastening devices.

11. In a flexible closure or fastener, the combination of flexiblestrips or stringers having spaced interlocking fastenin devices, and aslider' embracing and s iding upon said fastening devices forinterlocking and unlocking them, said slider being provided Withoutwardly presented ears or lugs, a pull pin member mounted upon saidears or lugs, and a reversible pull member havin an elongated slot andslidably engaging sairgi pull pin.

l2. A slider for separable fasteners of the class described said slidel`having a pull device pivoted thereto to swing freely about an axistransverse to the path of movement of the slider, said pull device beingprovided with a stop element engageable with a fixed part of the sliderto limit swing of the pull device in one direction.

RALPH H. BINNS.

' CERTIFICATI 0F CORRECTION.

Patent No. l, 680,362.

owned August 14, 1923,' to

mimi n. niNNs.

the tuixulaprlli lzrtirfdielt; tllint the above numbered patent waserroneously issued to wa Inns, as assignee of two seventhe` inter ttion, whereas said Edward H Binns should have i es m sud im.

. v appeared as owner of f' Interest, as shown by the records ofassignments in this office; and thalimtlsvseaniilb Letters-Patent shouldbe read with this correction therein that the same may conform to the.record of the case in the Patent Office.

Slgned and sealed| this 25th dey of September, A. D. 1928.

(Seal) M. J. Moore, Acting Commissioner 'o Patents.

5.,n a flexible closure or fastener, the combination of flexible stripsor stringers having spaced interlocking fastening devices, and a sliderembracing and s 1d upon said fastening devices for interlocking andunlocking them, with a pull member 1n the form of a link having anelongated slot and a fulcrum heel or enlargement at one end, and a pinmounted upon said slider and extending through and engaging said slottedlink pull member, the pull member being thereby slidably mounted uponthe slider and having its angular movement upon the slider pin limitedby the engagement of said fulcrum heel with the slider.

6. In a flexible closure or fastener, the combination of flexible stripsor stringers having spaced interlocking fastenin devices, and a sliderembracing and siding upon said fastening devices for interlocking andunlocking them, with a link pull member having pin and slot connectionwith said slider, and a locking detent upon said pull member in positionto engage interlocked fastening devices.

7. In a flexible closure or fastener, the combination of flexible stripsor stringers having spaced interlocking fastening devices, and a sliderembracing and sliding upon said fastening devices for interlocking andunlocking them, with a link pull member formed with an elongated slot,and a pin upon said slider adjacent to one end extending through theslot of said link pull member, and forming a slidable mounting therefor,said pull member being angularly and reversibly movable upon said pin.

8. In a flexible closure or fastener, the combination of flexible stripsor stringere having spaced interlockin fastening devices, and a sliderembracing an sliding upon said astenin g devices for interlocking andunlocking them, with a slotted link pull member formed with a fulcrumheel or enlar ement at one end, and a pull pin mounte upon said sliderand extending through the slot of said link pull member, said pullmember having slidable connection with said in and being therebyreversibly mounted an angularly movable u on said slider.

9. In a flexi le closure or fastener, the combination of flexible stripsor stringere having spaced interlocking fastenin devices, and a sliderembracing and siding upon said fastening devices for interlocking andunlocking them, with a pull member reversibly connected with said sliderand having a projecting heel or lug acting as a. stop in one positionand a thumb piece 1n another position.

10. In a flexible closure or fastener, the combination with flexiblestringers carryin spaced interlocking fastening devices forme withriding lugs or shoulders, said fastening devices alternating orzigzagging in their interlocked position, and an operating slider formedwith internal controllin grooves engaging said riding lugs or shou ders,with a l nk pull member movably mounted upon said slider and formed withstaggered inwardly projecting locking detente adapted to engage ridinglugs of adjacent interlocked fastening devices.

11. In a flexible closure or fastener, the combination of flexiblestrips or stringers having spaced interlocking fastenin devices, and aslider' embracing and s iding upon said fastening devices forinterlocking and unlocking them, said slider being provided Withoutwardly presented ears or lugs, a pull pin member mounted upon saidears or lugs, and a reversible pull member havin an elongated slot andslidably engaging sairgi pull pin.

l2. A slider for separable fasteners of the class described said slidel`having a pull device pivoted thereto to swing freely about an axistransverse to the path of movement of the slider, said pull device beingprovided with a stop element engageable with a fixed part of the sliderto limit swing of the pull device in one direction.

RALPH H. BINNS.

' CERTIFICATI 0F CORRECTION.

Patent No. l, 680,362.

owned August 14, 1923,' to

mimi n. niNNs.

the tuixulaprlli lzrtirfdielt; tllint the above numbered patent waserroneously issued to wa Inns, as assignee of two seventhe` inter ttion, whereas said Edward H Binns should have i es m sud im.

. v appeared as owner of f' Interest, as shown by the records ofassignments in this office; and thalimtlsvseaniilb Letters-Patent shouldbe read with this correction therein that the same may conform to the.record of the case in the Patent Office.

Slgned and sealed| this 25th dey of September, A. D. 1928.

(Seal) M. J. Moore, Acting Commissioner 'o Patents.

